baber/WOPTO huggingface dataset:
Patent GB-1259992-A (GB)
Title: Improvements relating to dielectric compositions
IPC: H01G4/12
Filed: 1969-06-05
Abstract: 1,259,992. Dielectric composition. INTERNATIONAL BUSINESS MACHINES CORP 5 June, 1969 [17 June, 1968], No. 28520/69. Heading H1M. [Also in Division C1] A dielectric composition comprises at least 88% by weight low-soda content Al 2 O 3  grains bonded with up to 12% by weight of a glassy phase by sintering at 1320-1480‹ C., the glassy phase containing at least 1% by weight of the composition of calcium phosphate and at least one of lithium silicate, zinc silicate, calcium silicate or magnesium silicate. Preferably the alumina, of grain size 0À5-5Á, comprises 88- 98% by weight of the composition. In a described embodiment the above components are ball and wet milled and a binder added, and the mixture, in a powder : binder ratio of about 1À3 : 1, cast as a slip or extruded on to a plastics film and dried, an electrode paste is deposited and the product fired at 1320-1480‹ C. A slip may have holes punched therein which become filled with the coating metal, a number of coated slips may be stacked, compressed, fired and cut to provide a number of, e.g., capacitor units to which lead pins are attached at the metal filled holes.
Patent GB-445996-A (GB)
Title: Improvements in and relating to meat tendering apparatus
IPC: A22C9/00
Filed: 1935-10-16
Abstract: 445,996. Making meat tender. MOLDAWSKY, J., 10, Charterhouse Street, London. Oct. 16, 1935, No. 28587. [Class 28 (ii)] Apparatus for rendering meat tender comprises a number of narrow, parallel, vertical blades A, held in a holder h fixed on or formed on a member b slidable on a cylindrical guide d<1> fixed in a boss c<2> on a standard c. Rods b<1>, b<2>, connecting plates p, p<11> are slidable in the member b, the plate p carrying removable bars f which guide the blades A which pass between them. The bars f have pointed ends to enable them to be pushed into position between the blades A and at their other ends are hinged by pins f to a member f<2>. The bars are locked to the plate p by plates p<12>, p<14>, the latter having handles p<25> to facilitate removal. The blade and guide assembly is secured to a rod d slidable in the guide d<1> by a nut b<24> so that the blade and guide assembly may be rotatably adjusted with reference to the meat on the table t. The plate p<1><1> is provided with two coacting, pivoted, tilting, clutch rings, one of which is under the influence of a tension spring s, the arrangement being such that when the member b is moved towards the plate p<11> it contacts with a stop on the other of the rings and releases the clutching action of both of the rings. The blade assembly is depressed, against the action of a spring s<1>, by a handle l connected by linkage p<2>, p<5> to a shaft p<1> having an arm p<17> which projects into a recess in the rod d. When the lever l is depressed the whole blade and guide assembly descends until the plate p rests on the meat and is arrested. Continued downward movement of the member b and blades A disengages the member b from the clutch rings and permits the spring s to make the clutch rings operative. When the blades A have penetrated the meat, the lever l is released, whereupon the spring s<1> raises the rod d, member b and blades A, the plates p, p<11> remaining stationary until the clutch rings are released by the member b contacting with the clutch ring stop. The whole assembly then rises to the initial position shown in Fig. 1. The blades are pointed at their ends, the inclines being opposite on adjacent blades, and are formed as a series of combs positioned in a dovetail guide in the holder h and held therein between distance washers on a screwed bolt a<5>. One side b<4> of the dovetail guide is removably secured to the holder by screws b<15>. A stop p<26> limits the extent of the descent of the blades. The table t is of wood and is slidable in grooves e<12> in the base c<1>. In a modification, the returning spring s<1> is replaced by compression springs surrounding guide posts for the member b on the base c<1>, the springs being enclosed in a casing having telescopic sections. The clutch rings are arranged one around each post.
Patent GB-1379963-A (GB)
Title: Ignitable charge device for ejection from a carrier such as a rocket or projectile
IPC: F42B5/16
Filed: 1972-06-19
Abstract: 1379963 Flares &c. BOFORS AB 19 June 1972 [21 June 1971] 28658/72 Heading F3A A flare or other combustible device for ejection from a rocket or projectile and subsequent suspension from a parachute comprises a cap 5 spaced from the end surface of a main charge 3, a primer 8 ignitable through a hole 9 in the cap by the hot combustion gases A from an explosive ejection charge, and a removable or destructible closure 11 which prevents ignition of the end surface of the main charge 2 through outlet openings 10 by the gases A. The primer delays ignition of the main charge until the parachute has opened. The jerk caused by the opening of the parachute causes the closure 11 to be thrown off. Alternatively the closure is destroyed by the hot gases A without the main charge being ignited; or the closure resists the gases A but gives way to gases from the main charge 3.
Patent GB-1000745-A (GB)
Title: Electric wire connector
IPC: H01R4/48
Filed: 1961-08-10
Abstract: 1,000,745. Binding-posts. HONEYWELL Inc. Aug. 10, 1961 [Aug. 10, 1960], No. 28963/61. Heading H2E. A terminal connector for a device having an insulating body 11, 12, comprises a channel defined by parallel walls 35, 36 of the body and a terminal bar 30, a wire 55 inserted in the channel being clamped against the terminal bar by the end of foot 41 of a leg 40. As shown, the leg 40 has a serrated end 41 pressed by a spring 46 into engagement with the wire, the leg pivoting about a wall of the body at a point adjacent its other end, which end is bent to form an ear 52 which co-operates with the wall of a cavity 54 to prevent excessive longitudinal movement of the leg when a tool is inserted through an opening 28 to release the connector.
Patent GB-724384-A (GB)
Title: An adjustable reclining chair or the like article of furniture
IPC: A47C1/034
Filed: 1953-10-20
Abstract: 724,384. Seats. LORENZ, A. Oct. 20, 1953 [Jan. 21, 1953], No. 28978/53. Class 52 (2). An adjustable reclining chair &c. wherein a unit comprising a seat and back rest rigid with one another is rockably mounted on a support is characterised in that a controlling element, swingably mounted on the support, is operatively connected to the unit, that a controlling bar is pivoted at one end to the mechanism including the connecting means and the controlling element and, at the other end, is pivoted to a controlling arm pivoted to another member of the mechanism and that the controlling arm is operatively connected to a leg rest pivoted to the front of the seat for effecting movements of said leg rest in co-ordination with the controlling arm. As shown, the combined back rest 24 and seat 22 is pivoted to the support 10 at 20, a controlling element 46 is pivoted to the support at 48, to a connecting link 40 at 44 and to a controlling bar 50 at 52. The other end of the bar 50 .is pivoted at 54 to a controlling arm 36 which is also pivoted to the connecting link 40 at 38 and to a controlling link 30 at 34. The connecting link 40 is pivoted to the seat at 42 and the link 30 to the leg rest 26 which is also pivoted to the seat at 28. The controlling mechanism proportioned as shown raises the leg rest to horizontal position 26<SP>1</SP> for a slight backward movement about the pivot 20. In modifications the connecting means may comprise two connecting links and the controlling element may have its lower end pivoted to the support instead of its upper end.
Patent GB-961305-A (GB)
Title: Improvements in or relating to the production of di-(aryl amino) aromatic dicarboxylic acids and salts thereof
IPC: C07C/
Filed: 1960-08-22
Abstract: Di-(arylamino)-aromatic dicarboxylic acid groups in which each amino group is in ortho-position to a carboxyl group and salts thereof are prepared by condensing at elevated temperature and in the presence of an Ullmann condensation catalyst 1 mol. of a dihalo-aromatic dicarboxylic acid having the halogen atoms in ortho-position to each carboxyl group, or a salt or alkyl ester thereof with 2 mols. of an N-aryl-formamide in the presence of sodium or potassium carbonate as an acid acceptor, hydrolyzing any remaining formyl groups and the ester groups in the product thus formed to yield a diarylamino aromatic dicarboxylic acid salt and, if desired, converting this salt to the free acid.  Specified Ullmann catalysts are copper powder, copper bronze powder, copper and iodine mixture, cuprous halides, cupric acetate or carbonate and cuprous nitrate.  In an example a mixture of dimethyl 2:5-dichloroterephthalate (1 mol.), formanilide (2.2 mols.), potassium carbonate (3 mols.) and cupric acetate (0.1 mol.) is heated for 4 hours at 200 DEG C., cooled, boiled with aqueous sodium hydroxide for 1 hour, the resultant solution filtered and acidified to yield 2:5-dianilino-terephthalic acid.  The preparation of 2:5-bis (21-fluoro- or 31-methyl- or 4-chloro-anilino)-terephthalic, 2:5-bis(b -naphthylamino)-terephthalic, 4:6-dianilino-isophthalic and 3:6-dianilinophthalic acids.
Patent GB-538430-A (GB)
Title: Automatic lathe
IPC: B23B7/04
Filed: 1939-10-30
Abstract: 538,430. Turning. SCHWOB, T. Oct. 30, 1939, No. 29007. [Class 83 (iii)] In an automatic lathe the cam shaft controlling the feed of the tools rotates at a constant speed and auxiliary cam shafts rotate intermittently to effect the idle movements at a high speed. The spindle 213 is geared as indicated to a motor 201 geared at 214 to a countershaft 31 that drives the feed cam shaft 15 through spur and worm gearing 217, 221, and drives the auxiliary cam shafts 27<SP>1</SP> and 224 through constantly running clutch parts 261, 26. When an idle movement of the tools, or rotation of the turret, stock feed &c. is to be effected, a tappet wheel 40, Fig. 2, on the shaft 15, by means such as a lever 371 trips a dog 361 allowing a spring 331 to shift the clutch part 25<SP>1</SP> (or 25) into engaged position. At the end of the idle movement the surface 351 causes the clutch to disengage position and a spring block 431 acting on a cam 44<SP>1</SP> brakes the movement. Specifications 537,470, 538,431 and 538,432 are referred to.
Patent GB-1013875-A (GB)
Title: Improvements in weft thread cutting devices for shuttleless looms and the like
IPC: D03D49/70
Filed: 1963-07-23
Abstract: 1,013,875. Selvedge trimming. BRELIC INTERNATIONAL Inc. July 23, 1963 [July 25, 1962], No. 29082/63. Heading D1E. Weft ends 5 are severed by repeatedly crushing them between a hard surface 11 and a disc 6. The hard surface 11 may be a roller or a table 21 over which the disc 6 may roll. The roller 11 oscillated by a link 16.
Patent GB-1362552-A (GB)
Title: Scraper bar chain conveyors
IPC: B65G19/22
Filed: 1972-06-22
Abstract: 1362552 Scraper conveyers WHEWAY WATSON Ltd 22 June 1972 [22 June 1971] 29095/71 Heading B8A A scraper bar 10 for use in a centre strand chain conveyer comprises a strengthened and widened portion 11 having a recess 12 for receiving a block 16 so that the recess 12 is substantially wholly filled and the bar 10 presents a substantially continuous scraping face. Parallel grooves 14 in the recess 12 receive opposite limbs of an oval chain link and rebates 15 in the grooves may accommodate the thickened join of a link. The block 16 has a groove 17 for the thickened link portion. Screws (not shown) secure the portion 11 and the block 16 together. Grooves and recesses 20, 21 receive portions of a link adjacent the link which is clamped. The bar may be designed for use with a pair of chains at its central portion.
Patent GB-718160-A (GB)
Title: A crankshaft for two-cylinder engines with the cylinders arranged side-by-side
IPC: F16C3/14
Filed: 1952-11-19
Abstract: 718,160. Centrifugal separators. POKORNY, V., KRIVKA, J., and SIMUNEK, J. Nov. 19, 1952 [June 18, 1952], No. 29253/52. Class 23 [Also in Group XXIV] A chamber 9 in a crankshaft (see Group XXIV), for the reception of impurities separated centrifugally, from the lubricating oil, is provided in a flywheel 1 radially outwards from the co-axial crankpins and is closed by a removable screw plug 11. The chamber 9 communicates, via a passage 10, with a chamber 8 supplying oil to the connecting rod bearings.
Patent GB-1261374-A (GB)
Title: An improved process for making alkali cellulose
Inventor: SHARMAN DONALD ARTHUR
IPC: C08B1/08
Filed: 1968-06-20
Abstract: 1,261,374. Alkali cellulose. COURTAULDS Ltd. 19 June, 1969 [20 June, 1968], No. 29351/68. Heading C3A. Solid alkali cellulose is prepared by mixing and steeping wood pulp with an aqueous caustic soda solution to form a slurry, passing the slurry to a slurry press and then pressing the slurry, live steam being injected into the slurry as it is being passed to the slurry press so as to raise its temperature. The steam is preferably dewatered and/or filtered prior to injection. The mixing and steeping operation may be carried out at 45 C. and the pressing operation at 55 C.
Patent GB-537107-A (GB)
Title: Improvements in or relating to obscuring vehicle headlights
IPC: F21V14/08
Filed: 1939-11-06
Abstract: 537,107. Vehicle headlights. O'SHEI, W. E. Nov. 6, 1939, Nos. 29456 and 30502. [Classes 75 (ii), 75 (iii) and 75 (iv)] A mask for vehicle lamps comprises an opaque member or disc having one or more light transmitting apertures to take the place of the front glass to which is secured a forwardly projecting hood to prevent the light being projected above the horizontal, the apertures being covered by light diffusing means carried by the opaque member or disc to diffuse or disperse non- uniformly the light passing through the apertures. Fig. 7, shows a screen formed from substantially transparent glass, cellulose material or synthetic resin and provided with ribs 38 which extend across transverse zones 27' of reduced thickness arranged opposite the slots in the opaque member or disc and ribs 42 which diffuse light from a sidelight. The ribs may be hemispherical, prismatic or other cross section and may have spaces of varying width therebetween which are provided with ribs of narrower section or plain. The ribs may be non-continuous and strengthening ribs may be provided on plain portions of the screen. The screen may be made adjustable so as to vary the position of the ribs relative to the apertures in the opaque member or disc. Instead of ribs, small spherical or other shaped projections may be employed or the screen may be formed from glass rods of circular or other section arranged side by side. The non-uniform dispersion may be obtained by non-uniform grinding of the surface of the screen or by the incorporation of pigment therein. Laminated screens having a layer of mica or cellusosic material to resist breakage may be employed. The screen may be moulded flat or dome or other shape. The ribs on the screen may be utilized for ventilating the mask as shown in Fig. 14. Air passes through an opening 52 in the opaque disc 26 into an annular space 51 between the disc 26 and clamping plate 29 and through a groove 54 in the thickened rim of the screen to the spaces between the ribs 38 and thence through a groove 55 to the space 51 and outlet 53. Specifications 534,848 and 535,522 are referred to.
Patent GB-206351-A (GB)
Title: Improvements in convertible bodies of baby carriages
IPC: B62B9/12
Filed: 1922-10-28
Abstract: 206,351. Harris, A. Oct. 28, 1922. Covers for exposed seats and occupants.-In a baby carriage of the kind which is convertible from single to double seated and' is provided at cna end with a fixed seat h and at the other end with a rigidly built hook-like member l hingad to swing longitudinally into two positions, in one of which it constitutes a hood for the foot space and in the other forms part of a second seat, means for supporting said member when opened out are provided which are internal, concealed, and automatic in action. The means preferably comprise a rod m passing through the body below the second seat f and preferably protruding at each side to form the supports for the springs, and arms n pivoted to each side of the member and adapted to engage the rod m to secure the member l in the opened position. These arms n are adapted to be hidden in the upholstery. The member l forms a back rest and arm rests for the second seat f.
Patent GB-864911-A (GB)
Title: Improvements in and relating to convertible furniture
IPC: A47B57/20
Filed: 1958-09-15
Abstract: 864,911. Cabinets; shelves, furniture joints. BERNAGOZZI, L. Sept. 15, 1958 [Sept. 14, 1957], No. 29459/58. Classes 52(1) and 52(2). Cabinet furniture is built up of basic elements each consisting of a top 1, lateral walls 2a, 2b a door 3, rear wall 4 and bottom 5, the opposite walls having passed therethrough tubular uprights 15 to which the elements are fixed by means of cotter pins 17. Shelves 21 may also be fixed in desired positions. The walls 2a, 2b each comprise a frame 6 on which plywood boards 7 are fixed, rear walls 4 fitting into grooves 8 and the top 1 being attached thereto by screws 11 which engage cylindrical pieces 9 inserted into the frame 6.
Patent GB-203226-A (GB)
Title: Improvements in hand operated mechanism or gear for opening and closing sky-lights, hinged windows and such like
IPC: E05F11/10
Filed: 1922-10-30
Abstract: 203,226. Schonfield, W. Oct. 30, 1922. Rigid-jaw wrenches. -A handle x adapted to turn a rod c forming part of window operating mechanism has a clamping-screw and is formed with a part x<3> serving as a box spanner to turn a binding-screw n.
Patent GB-692449-A (GB)
Title: Improvements in caustic alkali composition of matter and its use as a poly-valent metal precipitation inhibitor
IPC: C02F5/12
Filed: 1950-12-02
Abstract: The precipitation of iron and other polyvalent metals, including water-hardening constituents, in aqueous caustic alkali is inhibited by incorporating an amount e.g. 0.5-10 per cent of a triethanolamine alkali metal alcoholate sufficient to react completely with the iron to form a soluble complex compound.  The alcoholate or triethanolamine which forms the alcoholate may be added during concentration of the alkali or part may be added after concentration. A small amount, e.g. 1-5 per cent, of the alkali metal salt of ethylene diamine tetra-acetic acid increases the stabilizing effect and may be added in solution after concentration of the alkali or before if spray drying is used. The solid product obtained can be dissolved in water without the formation of a precipitate.
Patent GB-533461-A (GB)
Title: Improvements in vari-coloured glass articles and processes of making the same
IPC: C03C4/02
Filed: 1939-11-07
Abstract: 533,461. Making coloured glass articles. CORNING GLASS WORKS. Nov. 7, 1939, Nos. 29552 and 29553. Convention dates, Dec. 5, 1938, and Dec. 7, 1938. [Class 56] A coloured glass article is made of a borosilicate glass containing an oxide of lead or copper, and colour is obtained by reducing the oxide in the surface of the glass to metallic lead or copper by heating the article in a reducing gas such as hydrogen or methane. Selected areas of the coloured surface can be removed to expose the uncoloured interior portions of the glass to produce a vari-coloured article. A suitable glass is composed of approximately 71 per cent. of ScO 2 , 6 per cent. of PbO, 5.0 per cent. of Na 2 O, 16 per cent. of B 2 O 3 , and 2.0 per cent. of Al 2 O 3 , but a number of other compositions are given in the Specification. The removal of portions of the coloured surface may be effected by engraving, sand blasting &c. or a design may be impressed on the glass and the parts in relief subsequently ground off and polished. Alternatively, a design may be formed by preventing reduction of selected areas by the application of a suitable resist, such as powdered zinc mixed with a suitable binder. In the production of a hollow article, the interior may be protected from reduction by sealing the open end of the article or by placing the open end in a suitable fluid during the treatment in the reducing furnace. Luminous signs made up of electric discharge tubes may have parts of the tubing blackened by reduction for blocking out light between characters in the signs.
Patent GB-504799-A (GB)
Title: Improvements in or relating to sliding roofs for vehicles
IPC: B60J7/02
Filed: 1937-10-30
Abstract: 504,799. Vehicle opening-tops. BISHOP, W. H. Oct. 30,1937, No. 29692. [Class 108 (i)] In a sliding roof construction a channel member is secured transversely to the under side of the roof opening and similar channels, on which the sliding panel is guided, are secured along the sides of the opening and continued under the fixed part of the roof the ends of these channels being closed and provided with drain outlets. The panel 21, guided by members 24 which are . operated to lock the panel as described in Specification 463,749, slides on the channel members 12, which are connected by the transverse channel 13 and have drain channels 18 at their closed ends ; drain channels 19 are also provided at the ends of the transverse member. Tapered fillets may. be secured in line with the side channels, and the latter may be concealed by trimming secured to their inner edges. Specification 376,073, also is referred to.
Patent GB-639682-A (GB)
Title: Improvements in expansion valves for refrigerators
IPC: F25B41/06
Filed: 1947-11-07
Abstract: 639,682. Electromagnetically-operated valves. HALL, Ltd., J. & E., and HALES, R. T. Nov. 7, 1947, No. 29700. [Class 135] [Also in Group XXXVII] An expansion valve for a compression refrigerating system comprises a pointed rod 5 normally held on a seating 3 by a spring 6 coiled round the valve rod, the upper end of which is secured to a disc-shaped armature 7 of weight not exceeding twice that of the valve, dished at 8 for reception of the end of the rod. A pot magnet 10 is arranged above a diaphragm 9 closing the upper part of the valve housing. The magnet is energized in accordance with the temperature as described in Specifications 639,683 and 639,710, [both in Group XXXVII]. , Specification 419,917, [Group XXXVII], also is referred to.
Patent GB-375670-A (GB)
Title: Improvements in or relating to frits for the production of enamels
IPC: B04B1/20
Filed: 1931-10-28
Abstract: 375,670. Enamels. KREIDL, I., 5, Sebastian Kolilgasse, Vienna. Oct. 28, 1931, No. 29913. Convention date, Dec. 10, 1930. [Class 56.] A frit for the production of enamels, particularly opaque white enamels, is prepared from a mixture of such a chemical composition that the frit assumes a colloidal condition, or a finely-divided state approximating thereto, in the slip. The desired condition is obtained by increasing the proportion of fluorine in the batch, preferably by adding an alkali fluosilicate but not by the addition of cryolite. An example is given in the Specification of a suitable mixture for a frit which may be used for the production of an opaque white enamel by the process described in Specification 375,673.